Diki,
You can certainly edit all the styles and tracks of a song as much as you like within the T3.
Yamaha has come out with software that allows one to convert all their styles or registration memories or even songs they've recorded on the T1 or T3 to play perfectly on a T3 because from what I understand the software chooses appropriate sounds and effects that will enhance the sound when played on the T3.
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George Kaye
Kaye's Music Scene
Reseda, California
818-881-5566
www.kayesmusicscene.com
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George Kaye
Kaye's Music Scene (Closed after 51 years)
West Hills, California
(Retired 2021)